40523244385320 has 640 divisors, whose sum is σ = 146533298883840. Its totient is φ = 10007614955520.

The previous prime is 40523244385319. The next prime is 40523244385333. The reversal of 40523244385320 is 2358344232504.

40523244385320 is a `hidden beast` number, since 4 + 0 + 5 + 2 + 3 + 244 + 3 + 85 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2045275734 + ... + 2045295546.

It is an arithmetic number, because the mean of its divisors is an integer number (228958279506).

Almost surely, 2^{40523244385320} is an apocalyptic number.

40523244385320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40523244385320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73266649441920).

40523244385320 is an abundant number, since it is smaller than the sum of its proper divisors (106010054498520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40523244385320 is a wasteful number, since it uses less digits than its factorization.

40523244385320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20447 (or 20434 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 45.

The spelling of 40523244385320 in words is "forty trillion, five hundred twenty-three billion, two hundred forty-four million, three hundred eighty-five thousand, three hundred twenty".